Handheld User Interface Device for a Surgical Robot

ABSTRACT

Disclosed herein is a mobile interface device to control a robotically-assisted surgical system. The mobile interface device provides a surgeon with a direct view of the surgical robotic system and allows a surgeon to easily and intuitively select, control, or manipulate various target components of the surgical robotic system. The mobile interface device may capture a live image of the surgical robotic system to automatically identify a robotic arm that appears in the center of the captured live image as the target component selected by the surgeon. Based on the current pose or position of the target component, the mobile interface device may generate a list of target poses and control options. The surgeon may select a control option to select a target pose and to manipulate the target component to command a robotically-assisted movement of the selected robotic arm from the current pose to the target pose.

TECHNICAL FIELD

The subject technology generally relates to robotics and surgicalsystems, and more specifically to a screen-based interface to identifyand manipulate components such as surgical robotic arms or othercomponents such as the table of a surgical robotic system for preparingor performing minimally invasive surgeries.

BACKGROUND

Minimally-invasive surgery (MIS), such as laparoscopic surgery, involvestechniques intended to reduce tissue damage during a surgical procedure.For example, laparoscopic procedures typically involve creating a numberof small incisions in the patient (e.g., in the abdomen), andintroducing one or more surgical tools (e.g., end effectors andendoscope) through the incisions into the patient. The surgicalprocedures may then be performed using the introduced surgical tools,with the visualization aid provided by the endoscope.

Generally, MIS provides multiple benefits, such as reduced patientscarring, less patient pain, shorter patient recovery periods, and lowermedical treatment costs associated with patient recovery. Recenttechnology development allows more MIS to be performed with roboticsystems that include one or more robotic arms for manipulating surgicaltools based on commands from a remote operator. A robotic arm may, forexample, support at its distal end various devices such as surgical endeffectors, imaging devices, cannulas for providing access to thepatient's body cavity and organs, etc. In robotic MIS systems, it may bedesirable to establish and maintain high positional accuracy forsurgical instruments supported by the robotic arms.

Existing robotically-assisted surgical systems usually consist of asurgeon console from which a surgeon may select and manipulate therobotic arms and devices attached to the robotic arms. A robotcontroller may request the surgeon to select a robotic arm by presentingon the surgeon console identifiers such as numbers or mounting positionsassociated with the multiple robotic arms. Due to the lack of a naturalspatial relationship between the robotic arms as viewed by the surgeonat the surgeon console and the robotic arms when seen in a direct view,the surgeon may select the wrong robotic arm. Moving the wrong roboticarm may cause severe harm to the patient, other equipment, or bedsidepersonnel. It is desirable to have an interface that allows a surgeon tocontrol the surgical robotic system in a more intuitive manner tominimize mistakes when performing robotically-assisted surgeries.

SUMMARY

Disclosed herein is a mobile interface device to control arobotically-assisted surgical system, also referred to as a surgicalrobotic system, which is a software-controlled, electro-mechanicalsystem, designed for surgeons to perform minimally-invasive surgeries.The mobile interface device provides a surgeon with a direct andreal-time view of the surgical robotic system and allows a surgeon toeasily and intuitively select, control, or manipulate various targetcomponents of the surgical robotic system. For example, the mobileinterface device may automatically identify a robotic arm that is in thecenter of attention of the surgeon, or that appears in the center of animage captured by the interface device, as the target component selectedby the surgeon. Based on the current pose or position of the targetcomponent, the mobile interface device may generate a list of controloptions. The surgeon may select a control option to manipulate thetarget component such as commanding a robotically-assisted movement ofthe selected robotic arm to a desired pose.

The interface device for the surgical robotic system may include acamera, a processor, a display, and one or more control buttons. Thecamera may capture live images or videos of the surgical robotic system.The processor may execute image processing software on the captured livevideos or images to identify a target component of the surgical roboticsystem to be controlled using the interface device and to determine aninitial or a current pose of the target component. The display maydisplay the captured live images or videos including identifying thetarget component of the surgical robotic system. The display may displayone or more potential target poses of the target component. Theinterface device may present control options to allow the surgeon toselect one of the potential target poses and to control the targetcomponent. The control buttons may be used to generate input commands tothe surgical robotic system to move the target component from thecurrent pose to the selected target pose.

In one aspect, the processor may identify the potential target poses ofthe target component by processing the captured video or images toidentify one or more objects with which the target component may engage.In one aspect, the interface device may receive information on thetarget pose from the surgical robotic system or through commands enteredby the surgeon into the interface device. In one aspect, the interfacedevice may include one or more sensors. The sensors may measure inthree-dimensions the relative positions to the interface device ofvarious surface points of the surgical robotic system captured by thecamera. The interface device may process the measurements from thesensors to aid in identifying the target component, in determining thecurrent pose of the target component, or in identifying the potentialtarget poses of the target component.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are provided together with the followingdescription of various aspects and embodiments of the subject technologyfor a better comprehension of the invention. The drawings and theembodiments are illustrative of the invention, and are not intended tolimit the scope of the invention. It is understood that a person ofordinary skill in the art may modify the drawings to generate drawingsof other embodiments that would still fall within the scope of theinvention.

FIG. 1 is a pictorial view of an example surgical robotic system 1 in anoperating arena, in accordance with aspects of the subject technology.

FIG. 2A is a front view of an interface device showing the display inwhich a robotic arm of the surgical robotic system is visualized toenable identification or selection/targeting of the individualcomponents, in accordance with aspects of the subject technology; andFIG. 2B is a back view of an interface device showing a camera, anoptional 3-D camera, and control buttons (which could also be situatedon the front or side of the device), in accordance with aspects of thesubject technology.

FIG. 3 shows an interface device used to control a robotic arm to movefrom an initial pose to a final pose, in accordance with aspects of thesubject technology.

FIG. 4 is a block diagram illustrating exemplary hardware components ofan interface device, in accordance with aspects of the subjecttechnology.

FIG. 5 is a block diagram illustrating exemplary hardware components ofa surgical robotic system, in accordance with aspects of the subjecttechnology.

FIG. 6 is a flow chart illustrating a method of controlling a surgicalrobotic system using a mobile device, in accordance with aspects of thesubject technology.

DETAILED DESCRIPTION

Examples of various aspects and variations of the subject technology aredescribed herein and illustrated in the accompanying drawings. Thefollowing description is not intended to limit the invention to theseembodiments, but rather to enable a person skilled in the art to makeand use this invention.

An interface device is disclosed herein to allow surgeons to intuitivelycontrol a surgical robotic system, which is a software-controlled,electro-mechanical system designed to help the surgeons performminimally-invasive surgeries. The interface device allows a surgeon whohas a direct view of an operating room environment to select, control,or manipulates various components of the surgical robotic system oraccessories attached thereto during the preoperative setup, during thesurgery, or during the post-operative procedures. For example, thesurgeon may use a portable interface device to select a robotic arm ofthe surgical robotic system by placing the robotic arm near the centerof the field of view of a camera of the interface device. The interfacedevice may automatically identify the robotic arm of interest and maydetermine its initial or current pose by running image processing on theimage of the surgical robotic system captured by the camera. Byselecting and controlling components of the surgical robotic systemthrough the direct view provided by the interface device rather thanthrough the indirect view of a remote console, the risk of a surgeonmistakenly selecting and moving the wrong component of the surgicalrobotic system may be reduced.

Based on the initial pose of the selected component, the interfacedevice may present control options for the selected component. Thesurgeon may select a control option to activate robotically-assistedmovement of the selected component to a target position through aplanned trajectory. For example, the surgeon may move a robotic arm froma preparation position to a pre-docking position to engage with anendoscopic instrument or accessories intended for endoscopicmanipulation of tissues including grasping, cutting, blunt and sharpdissection, approximation, ligation, electrocautery, and suturing. Inanother example, the surgeon may change an angle of the surgery table toelevate the feet of a patient to provide the endoscopic instrument witha clearer view of the target issue or organ.

FIG. 1 is a pictorial view of an example surgical robotic system 1 in anoperating arena, in accordance with aspects of the subject technology.The robotic system 1 includes a user console 2, a control tower 3, andone or more surgical robotic arms 4 at a surgical robotic platform 5,e.g., a table, a bed, etc. The system 1 can incorporate any number ofdevices, tools, or accessories used to perform surgery on a patient 6.For example, the system 1 may include one or more surgical tools 7 usedto perform surgery. A surgical tool 7 may be an end effector that isattached to a distal end of a surgical arm 4, for executing a surgicalprocedure.

Each surgical tool 7 may be manipulated manually, robotically, or both,during the surgery. For example, the surgical tool 7 may be a tool usedto enter, view, or manipulate an internal anatomy of the patient 6. Inan embodiment, the surgical tool 7 is a grasper that can grasp tissue ofthe patient. The surgical tool 7 may be controlled manually, by abedside operator 8; or it may be controlled robotically, via actuatedmovement of the surgical robotic arm 4 to which it is attached. Therobotic arms 4 are shown as a table-mounted system, but in otherconfigurations the arms 4 may be mounted in a cart, ceiling or sidewall,or in another suitable structural support.

Generally, a remote operator 9, such as a surgeon or another person, mayuse the user console 2 to remotely manipulate the arms 4 and/or theattached surgical tools 7, e.g., teleoperation. The user console 2 maybe located in the same operating room as the rest of the system 1, asshown in FIG. 1. In other environments however, the user console 2 maybe located in an adjacent or nearby room, or it may be at a remotelocation, e.g., in a different building, city, or country. The userconsole 2 may comprise a seat 10, foot-operated controls 13, one or morehandheld user input devices, UID 14, and at least one user display 15that is configured to display, for example, a view of the surgical siteinside the patient 6. In the example user console 2, the remote operator9 is sitting in the seat 10 and viewing the user display 15 whilemanipulating a foot-operated control 13 and a handheld UID 14 in orderto remotely control the arms 4 and the surgical tools 7 (that aremounted on the distal ends of the arms 4.)

In some variations, the bedside operator 8 may also operate the system 1in an “over the bed” mode, in which the beside operator 8 (user) is nowat a side of the patient 6 and is simultaneously manipulating arobotically-driven tool (end effector as attached to the arm 4), e.g.,with a handheld UID 14 held in one hand, and a manual laparoscopic tool.For example, the bedside operator's left hand may be manipulating thehandheld UID to control a robotic component, while the bedsideoperator's right hand may be manipulating a manual laparoscopic tool.Thus, in these variations, the bedside operator 8 may perform bothrobotic-assisted minimally invasive surgery and manual laparoscopicsurgery on the patient 6.

During an example procedure (surgery), the patient 6 is prepped anddraped in a sterile fashion to achieve anesthesia. Initial access to thesurgical site may be performed manually while the arms of the roboticsystem 1 are in a stowed configuration or withdrawn configuration (tofacilitate access to the surgical site.) Once access is completed,initial positioning or preparation of the robotic system 1 including itsarms 4 may be performed. For example, the remote operator 9 at the userconsole 2 or the bedside operator 8 may use the handheld UIDs 14 to movethe arm 4 from the stowed configuration to a preparation position abovethe patient 6 during the pre-operative setup. Alternatively, a surgeonor bedside personnel with a direct view of the table 5 may operate theinterface device disclosed herein to select and to move an arm 4 to thepreparation position. Next, the surgery proceeds with the remoteoperator 9 at the user console 2 utilising the foot-operated controls 13and the UIDs 14 to manipulate the various end effectors and perhaps animaging system, to perform the surgery. Manual assistance may also beprovided at the procedure bed or table 5, by sterile-gowned bedsidepersonnel, e.g., the bedside operator 8 who may perform tasks such asretracting tissues, performing manual repositioning, and tool exchangeupon one or more of the robotic arms 4. Non-sterile personnel may alsobe present to assist the remote operator 9 at the user console 2. Whenthe procedure or surgery is completed, the system 1 and the user console2 may be configured or set in a state to facilitate post-operativeprocedures such as cleaning or sterilisation and healthcare record entryor printout via the user console 2.

In one embodiment, the remote operator 9 holds and moves the UID 14 toprovide an input command to move a robot arm actuator 17 in the roboticsystem 1. The UID 14 may be communicatively coupled to the rest of therobotic system 1, e.g., via a console computer system 16. The UID 14 cangenerate spatial state signals corresponding to movement of the UID 14,e.g. position and orientation of the handheld housing of the UID, andthe spatial state signals may be input signals to control a motion ofthe robot arm actuator 17. The robotic system 1 may use control signalsderived from the spatial state signals, to control proportional motionof the actuator 17. In one embodiment, a console processor of theconsole computer system 16 receives the spatial state signals andgenerates the corresponding control signals. Based on these controlsignals, which control how the actuator 17 is energized to move asegment or link of the arm 4, the movement of a corresponding surgicaltool that is attached to the arm may mimic the movement of the UID 14.Similarly, interaction between the remote operator 9 and the UID 14 cangenerate for example a grip control signal that causes a jaw of agrasper of the surgical tool 7 to close and grip the tissue of patient6.

The surgical robotic system 1 may include several UIDs 14, whererespective control signals are generated for each UID that control theactuators and the surgical tool (end effector) of a respective arm 4.For example, the remote operator 9 may move a first UID 14 to controlthe motion of an actuator 17 that is in a left robotic arm, where theactuator responds by moving linkages, gears, etc., in that arm 4.Similarly, movement of a second UID 14 by the remote operator 9 controlsthe motion of another actuator 17, which in turn moves other linkages,gears, etc., of the robotic system 1. The robotic system 1 may include aright arm 4 that is secured to the bed or table 5 to the right side ofthe patient, and a left arm 4 that is at the left side of the patient.An actuator 17 may include one or more motors that are controlled sothat they drive the rotation of a joint of the arm 4, to for examplechange, relative to the patient, an orientation of an endoscope or agrasper of the surgical tool 7 that is attached to that arm. Motion ofseveral actuators 17 in the same arm 4 can be controlled by the spatialstate signals generated from a particular UID 14. The UIDs 14 can alsocontrol motion of respective surgical tool graspers. For example, eachUID 14 can generate a respective grip signal to control motion of anactuator, e.g., a linear actuator that opens or closes jaws of thegrasper at a distal end of surgical tool 7 to grip tissue within patient6.

In one aspect, instead of an arm 4 or the attached surgical tool 7mimicking the movement of the UID 14 in the hands of the remote operator9, a surgeon with a direct view of the arm 4 or the surgical tool 7 mayuse the interface device disclosed herein to move the arm 4 or thesurgical tool 7 to a desired position. For example, a surgeon may selectone of the arms 4 by framing a target arm near the center of the fieldof view of a camera of the interface device. The interface device mayrun image processing software on the image captured by the camera toautomatically identify the target arm as the object to be controlled andto determine its initial or current pose. For example, the interfacedevice may identify the arm near the center of the image frame as thetarget arm and may determine that the target arm is in the preparationposition. The interface device may highlight the target arm bydisplaying a visual indicator on the screen such as by outlining thetarget arm on the display screen with a green engagement indicator or byrendering an image of the target arm augmented with virtual information.In another aspect, the surgeon may use the touch screen to indicate theobject to be controlled by touching the object, for example, by touchingthe arm 4 displayed on the touch screen.

In one aspect, the interface device may run the image processingsoftware to identify one or more objects or points near the objects inthe image frame as a possible destination position for the target arm.The interface device may identify or highlight the possible destinationpositions on the display screen, may display the names of the possibledestination positions on the display screen, and may request the surgeonto confirm the destination position. For example, the interface devicemay identify a trocar near the target arm as a surgical tool that thetarget arm may wish to engage, and thus a possible destination positionfor the target arm, by highlighting the trocar on the screen andrequesting the surgeon to confirm. If the surgeon confirms, theinterface device may calculate a trajectory for moving the target armfrom the preparation position to a pre-docking position proximate to thetrocar so the trocar may be attached to the distal end of the targetarm. The interface device may display the calculated trajectory as oneof the options for the surgeon to select. In another aspect, the surgeonmay use the touch screen to indicate the destination position for thetarget arm by, for example, pressing the trocar displayed on the touchscreen. In another aspect, the interface device may display a number ofoptions indicating predefined positions or poses as possible destinationpositions of the target arm and planned trajectories to the predefinedpositions for the surgeon to select. Once the surgeon selects thetrajectory, position, or pose, the interface device transmitsinformation to the surgical robotic system 1 to enable the surgicalrobotic system 1 to activate the actuator 17 to drive the gears,linkages, or joints of the target arm to move the target arm through theselected or programmed trajectory to the destination position or pose.

In some aspects, the communication between the platform 5 and the userconsole 2 or the interface device may be through a control tower 3,which may translate user commands that are received from the userconsole 2 (and more particularly from the console computer system 16) orfrom the interface device into robotic control commands that aretransmitted to the arms 4 on the robotic platform 5. The control tower 3may also transmit status and feedback from the platform 5 back to theuser console 2 or the interface device. The communication connectionsbetween the robotic platform 5, the user console 2, and the controltower 3 may be via wired and/or wireless links, using any suitable onesof a variety of data communication protocols. Any wired connections maybe optionally built into the floor and/or walls or ceiling of theoperating room. The robotic system 1 may provide video output to one ormore displays, including displays within the operating room as well asremote displays that are accessible via the Internet or other networks.The video output or feed may also be encrypted to ensure privacy and allor portions of the video output may be saved to a server or electronichealthcare record system.

Prior to initiating surgery with the surgical robotic system 1, thesurgical team can perform the preoperative setup. During thepreoperative setup, the main components of the surgical robotic system(table 5 and robotic arms 4, control tower 3, and user console 2) arepositioned in the operating room, connected, and powered on. The table 5and robotic arms 4 may be in a fully-stowed configuration with the arms4 under the table 5 for storage and/or transportation purposes. Thesurgical team can extend the arms from their stowed position for steriledraping. After draping, the arms 4 can be partially retracted untilneeded for use. A number of conventional laparoscopic steps may need tobe performed including trocar placement and insufflation. For example,each sleeve can be inserted with the aid of an obturator, into a smallincision and through the body wall. The sleeve and obturator allowoptical entry for visualization of tissue layers during insertion tominimize risk of injury during placement. The endoscope is typicallyplaced first to provide hand-held camera visualization for placement ofother trocars. After insufflation, if required, manual instruments canbe inserted through the sleeve to perform any laparoscopic steps byhand.

Next, the surgical team may position the robotic arms 4 over the patientand attach each arm to its corresponding sleeve. The surgical roboticsystem 1 has the capability to uniquely identify each tool (endoscopeand surgical instruments) as soon as it is attached and display the tooltype and arm location on the open or immersive display 15 at the userconsole 2 and the touchscreen display on the control tower 3. Thecorresponding tool functions are enabled and can be activated using themaster UIDs 14 and foot pedals 13. The patient-side assistant can attachand detach the tools, as required, throughout the procedure. The surgeonseated at the user console 2 can begin to perform surgery using thetools controlled by two master UIDs 14 and foot pedals 13. The systemtranslates the surgeon's hand, wrist, and finger movements through themaster UIDs 14 into precise real-time movements of the surgical tools.Therefore, the system constantly monitors every surgical maneuver of thesurgeon and pauses instrument movement if the system is unable toprecisely mirror the surgeon's hand motions. In case the endoscope ismoved from one arm to another during surgery, the system can adjust themaster UIDs 14 for instrument alignment and continue instrument controland motion. The foot pedals 13 may be used to activate various systemmodes, such as endoscope control and various instrument functionsincluding monopolar and bipolar cautery, without involving surgeon'shands removed from the master UIDs 116.

The table 5 can be repositioned intraoperatively. For safety reason, alltool tips should be in view and under active control by the surgeon atthe user console 2. Instruments that are not under active surgeoncontrol must be removed, and the table feet must be locked. During tablemotion, the integrated robotic arms 4 may passively follow the tablemovements. Audio and visual cues can be used to guide the surgery teamduring table motion. Audio cues may include tones and voice prompts.Visual messaging on the displays at the user console 2 and control tower3 can inform the surgical team of the table motion status.

In one aspect, a surgeon with a direct view of the table 5 may use theinterface device disclosed herein to reposition the table 5. Forexample, a surgeon may wish to elevate the upper torso of the patient 6.The surgeon may select a section of the table 5 that holds the patient'supper torso by framing the table section near the center of the field ofview of the camera. The interface device may run image processingsoftware on the camera image to identify the table section as the objectto be controlled. In another aspect, the surgeon may use the touchscreen to indicate the table section to be controlled by touching thetable section. The interface device may present a number of optionsindicating different degrees by which the table section may be raised orlowered. In one aspect, the surgeon may specify the angle of elevation.Once the surgeon selects or enters the new position of the tablesection, the interface device transmits information to the surgicalrobotic system 1 to enable the surgical robotic system 1 to drive themechanisms to elevate the table section to the desired position.

FIG. 2A is a front view 25 of an interface device showing the display inwhich a robotic arm of the surgical robotic system is visualized toenable identification or selection/targeting of the individualcomponents, in accordance with aspects of the subject technology. Theinterface device includes a display screen 26 and handles 27. Thedisplay screen 26 may display real-time images or videos captured by acamera on the backside of the interface device. The display screen 26may be a touch screen to allow a user to enter commands, makeselections, or manipulate displayed objects. In one aspect, a user mayselect a target component of the surgical robotic system to control bypointing the interface device at the target component so that the targetcomponent appears near the center of the display screen 26. In oneaspect, image processing algorithms may process the images or videoscaptured by the camera to automatically identify a component of thesurgical robotic system appearing near the center of the display screen26 as the target component. In one embodiment, a processor on theinterface device may run the image processing algorithms. In anotherembodiment, a computer of the surgical robotic system such as thecontrol tower 3 of FIG. 1 may run the image processing algorithms. Theinterface device may transmit the captured images or videos to thesurgical robotic system for the remote image processing operations andmay receive from the surgical robotic system the identified targetcomponent. In one embodiment, a user may identify the target componentby touching the target component on the display screen 26.

In one aspect, the image processing algorithms may determine an initialpose or position of the target component. For example, a robotic arm maybe folded in a stowed position for storage, extended in a drape positionfor sterile draping, bent in a preparation position above the patientduring pre-operative setup, configured in a pre-docking position readyto be attached to a nearby surgical tool, or in a docked positionattached to a surgical tool. The interface device may highlight thetarget component on the display screen 26 for the user to confirm, forexample by highlighting the target component with an engagementindicator. The user may confirm or may reject the target component, inwhich case the interface device may attempt to identify anothercomponent. In one aspect, prior to the user confirming the targetcomponent, if the user moves the interface device so the targetcomponent is out of the view of the camera, the image processingalgorithms may deselect the target component. In another aspect, afterthe user confirms the target component and while the surgical roboticsystem is activated to move the target component, if the user moves theinterface device so the target component is out of view of the camera,the interface device may deselect the target component and may freezeits movement to prevent the user from moving the target component whenit's not the focus of the user's attention.

Based on a confirmed target component and the initial position or poseof the target component, the interface device may generate a list ofoptions for the user to control the position, orientation, movement,function, etc., of the target component. For example, if the userconfirms that a robotic arm in the drape position is the targetcomponent, the interface device may present a list of options for movingthe robotic arm to a predefined preparation or pre-docking position. Inone aspect, the list of options may include planned trajectories of therobotic arm to the predefined positions. The interface device maypresent the list of pre-defined target positions of the targetcomponent, the names of the pre-defined target positions (e.g.,preparation position, pre-docking position, etc.), or the plannedtrajectories to the pre-defined target positions as an overlay, forexample as an augmented reality (AR) overlay on the display screen 26.The user may select one of the pre-defined target positions as thedesired target position of the target component. The interface devicemay calculate a trajectory for moving the target component from theinitial position to the selected target position. In one aspect, theuser may select one of the planned trajectories when selecting thedesired target position.

In one embodiment, the image processing algorithms may identify anotherobject in the images or videos as a possible destination position forthe target component. For example, if a robotic arm in a preparationposition is confirmed as the target component, the image processingalgorithms may identify a surgical tool in the images or videos as apossible target to which the robotic arm may be attached. The interfacedevice may present the current position or pose of the surgical tool, ora volume in space in the immediate vicinity of the surgical tool as apossible pre-docking destination position for the robotic arm. If theuser selects the pre-docking position presented, the interface devicemay calculate a trajectory for moving the robotic arm from thepreparation position to the pre-docking position. The interface devicemay calculate the trajectory so the robotic arm avoids colliding with orinterfering with the operation of other robotic arms. In one aspect, ifthe planned movement of the robotic arm necessitates moving otherrobotic arms, the list of options may include one or more plannedtrajectories for each of multiple robotic arms.

In one embodiment, the user may indicate the destination positiondirectly on the touch screen by, for example, touching the surgical tooldisplayed. The interface device may highlight the selected surgical toolto request the user to confirm the selection. If confirmed, theinterface device may calculate the trajectory for moving the robotic armto the selected surgical tool and may present the trajectory as anoption for the use to select. In one embodiment, a computer of thesurgical robotic system such as the control tower may calculate thetrajectory instead of the interface device.

Once the user selects an option for moving or changing the position,orientation, or function of the robotic arm, the interface devicetransmits the selection and information about the trajectory, if any, tothe control tower 3 of the surgical robotic system. The user may beprompted to activate the movement of the robotic arm by pressing on acontinuous activation button. The interface device may transmit anactivation signal to the control tower 3 when the user presses thecontinuous activation button. Upon receiving the activation signal, thecontrol tower 3 may generate the control signals to activate theactuator 17 to drive the gears, linkages, or joints of the robotic armto move the robotic arm through the selected trajectory to thedestination position. For safety reasons, the user may need to hold thecontinuous activation button until the robotic arm completes itstrajectory to the destination position. If the user releases thecontinuous activation button, the interface device stops transmittingthe activation signal, causing the control tower 3 to stop the motion ofthe robotic arm. During the move, the display screen 26 may continue tohighlight the robotic arm with the engagement indicator to visuallyindicate to the user that the robotic arm is moving. For added safety,if the user moves the interface device so the robotic arm is out of viewof the camera, the interface device may cut off the transmission of theactivation signal to stop the movement of the robotic arm to prevent adistracted user from harming the patient.

Referring to FIG. 2A, the display screen 26 shows an example image of atarget robotic arm 28 and a second arm 29. The image processingalgorithm identifies the target robotic arm 28 appearing in the centerof the image as the target component of the surgical robotic system tobe controlled. The image processing algorithm determines that the targetrobotic arm 28 is in a preparation position parked over a patient. Thedisplay screen 26 highlights the target robotic arm 28 by enveloping itwith an engagement indicator 30. Based on the determination that thetarget robotic arm 28 is in the preparation position, the display screen26 displays a list of options 31 for the user to control the position,orientation, movement, function, etc., of the target robotic arm 28. Forexample, the list of options 31 may include options for moving thetarget robotic arm 28 to a predefined pre-docking position, to apre-docking position near a surgical tool, through a planned trajectory,etc. The user may select an option on the display screen 26. Onceselected, the engagement indicator 30 may change to a different color,such as green, to indicate that the target robotic arm 28 is ready to beactivated. The user may hold a continuous activation button on the backof the interface device to activate the movement of the target roboticarm 28 through its trajectory to the selected destination position. Whenthe target robotic arm 28 completes its trajectory to reach itsdestination position, the movement stops and the engagement indicator 30may be turned off to indicate that the target robotic arm 28 isdeactivated and deselected.

FIG. 2B is a back view 35 of an interface device showing a camera 37, anoptional three-dimensional (3-D) camera 38, and control buttons 36, inaccordance with aspects of the subject technology. The camera 37 maycapture a planar image or video of the surgical robotic system orcomponents thereof to display on the display screen 26 on the front ofthe interface device. In one embodiment, the interface device maytransmit the captured images or videos to the surgical robotic system todisplay on a remote screen. As discussed, image processing algorithmsrunning on the interface device or the surgical robotic system mayprocess the images or videos to automatically identify a component ofthe surgical robotic system appearing near the center of the images orvideos as a target component to be controlled by a user. Additionally,the image processing algorithms may determine an initial pose orposition of the target component. In one embodiment, the imageprocessing algorithms may identify another object in the images orvideos as a possible destination position for the target component.

To aid the image processing algorithms in identifying the targetcomponent or other objects and their positions, the interface device mayhave sensors such as the 3-D camera 38 to determine the 3-D positions ofcomponents of the surgical robotic system relative to the interfacedevice. For example, the 3-D camera may measure the 3-D positionsrelative to the interface device of surface points of components of thesurgical robotic system. Embodiments of the 3-D camera may includeinfrared camera tracking system that emits stereo infrared projectingpatterns, inertial measurement unit, structured light camera, microtime-of-flight camera, stereo camera, etc. In one embodiment, a surgeonmay use the 3-D camera of the interface device to scan a patient on theoperating table during pre-operative setup to help the surgeon plan forthe surgery using the surgical robotic system.

The control buttons 36 may be placed on both handles 27 to align withcontrol options displayed on the display screen 26. A user may use thecontrol buttons 36 to select a control option to operate a targetcomponent. Once a control option is selected, the user may use thecontrol buttons to operate the target component to execute the selectedoption. In one aspect, the control buttons 36 may be a continuousactivation button that needs to be continuously pressed to allow theuser to activate the movement of the target component from an initialposition through a planned trajectory to a destination position. Whenthe user releases the control buttons, the movement of the targetcomponent may stop, even when the target component has not completed itstrajectory.

FIG. 3 shows an interface device used to control a robotic arm to movefrom an initial pose to a final pose, in accordance with aspects of thesubject technology. The operating room environment 35 shows a patient 39on a table 36A of a surgical robotic system. A first robotic arm 37A anda second robotic arm 38 are positioned on one side of the table 36A. Atrocar 40A has been placed on the patient 39 near the first robotic arm37A.

A user with a direct view of the operating room environment 35 uses thecamera of the interface device to capture a real time image or video ofthe surgical robotic system. The display screen 26 shows an image of thefirst robotic arm 37B, the table 36B, and the trocar 40B. The second arm38 is out of view of the camera. The image processing algorithmidentifies the first robotic arm 37B appearing in the center of theimage as the target component of the surgical robotic system to becontrolled. The image processing algorithm determines that the firstrobotic arm 37B is in a preparation position parked over the patient 39.The display screen 26 highlights the first robotic arm 37B by envelopingit with an engagement indicator 30 of a first color, such as yellow.Based on the determination that the first robotic arm 37B is in thepreparation position, the display screen 26 displays a list of options31 for the user to control the position, orientation, movement,function, etc., of the first robotic arm 37B.

The image processing algorithm may additionally identify the trocar 40Bas a possible destination position for the first robotic arm 37B. Assuch, the list of options 31 may include an option for moving the firstrobotic arm 37B to a pre-docking position near the trocar 40B, through aplanned trajectory. The user may select this option on the displayscreen 26. Once selected, the engagement indicator 30 may change to asecond color, such as green, to indicate that the first robotic arm 37Bis ready to be activated. The user may hold a continuous activationbutton on the back of the interface device to activate the movement ofthe first robotic arm 37B through its trajectory to the pre-dockingposition near the trocar 40B. When the first robotic arm 37B completesits trajectory to the pre-docking position, the movement stops and theengagement indicator 30 may be turned off to indicate that the firstrobotic arm 37B is deactivated and deselected.

The interface device may also be used to select other components of thesurgical robotic system. For example, the interface device and the imageprocessing algorithm may identify the table 36B appearing in the centerof the image as the target component of the surgical robotic system tobe controlled. In one embodiment, the interface device may be used toperform a 3-D scan of a patient on the table during a pre-operativesetup to help the surgeon plan for the surgery using the surgicalrobotic system. The interface device may then be used to control therobotic arms and the table for patient-specific optimal robotic arm andtable motion. The interface device may facilitate user selection of thecomponents of the surgical robotic system using virtual representationsor augmented reality views. For example, the display screen 26 maydisplay a rendered image or a virtual model of the components, such as acamera view of the components augmented with additional or virtualinformation.

The interface device may provide other features such as a Web portal(e.g. browser), and may display information such as case setups, surgeonpreference cards, instrument lives, documentation, snap shots fromendoscope for documentation, photos of patients for documentation,system eIFU, patient data, procedure guide, etc. Other features mayinclude teleconferencing using microphones, speakers, a front facingwebcam; service calls using microphones, speakers, a back facing webcam;user authentication using a fingerprint reader and/or an NFC cardreader; a docking station to connect to the surgical robotic system suchas pairing of a new interface device with the surgical robotic system bysliding in the interface device to the docking station for the surgicalrobotic system to recognize the interface device; range detection ofinterface device to control tower using Bluetooth and WiFi to monitorsignal strengths of the connections and to trigger alerts when theinterface device is too far away.

FIG. 4 is a block diagram illustrating exemplary hardware components ofan interface device 50, in accordance with aspects of the subjecttechnology. The interface device 50 includes a camera 51, sensor 52,display 53, user command interface 54, processor 55, memory 56, andnetwork interface 57. The camera 51 may be configured to capture aplanar image or video of the surgical robotic system. The sensor 52 maybe a 3-D camera configured to determine the 3-D positions of componentsof the surgical robotic system relative to the interface device. Imagescaptured by the camera 51 and 3-D positional measurements made by thesensor 52 may be shown on the display 53, which may be a touch screen.

The processor 55 may be configured to run image processing algorithms toprocess the images captured by the camera 51 and measurements made bythe sensor 52 to automatically identify a component of the surgicalrobotic system appearing near the center of the image as a targetcomponent to be controlled by a user. The processor 55 may be configuredto run an operating system to control the operation of the interfacedevice 50. The memory 56 may store the image processing algorithms,operating system, program codes, and other data memories used by theprocessor 55. The user command interface 54 may include the continuousactivation button used by the user to select a control option to operatea target component and to execute the selected option to move the targetcomponent to its destination position.

The hardware components may communicate via a bus. The interface devicemay use the network interface 57 to communicate with the surgicalrobotic system through an external interface 58. The external interface58 may be a wireless or a wired interface.

FIG. 5 is a block diagram illustrating exemplary hardware components ofa surgical robotic system 60, in accordance with aspects of the subjecttechnology. The exemplary surgical robotic system 60 may include aninterface device 50, a surgical robot 80, and a control tower 70. Theinterface device 50 has been discussed in regard to FIG. 4 and is notrepeated. The surgical robotic system 60 may include other or additionalhardware components; thus, the diagram is provided by way of example andnot a limitation to the system architecture.

The control tower 70 may be a mobile point-of-care cart housingtouchscreen displays, computers that control the surgeon'srobotically-assisted manipulation of instruments, safety systems,graphical user interface (GUI), light source, and video and graphicscomputers. As shown in FIG. 5, the control tower 70 may comprise centralcomputers 71 that may include at least a visualization computer, acontrol computer, and an auxiliary computer, various displays 73 thatmay include a team display and a nurse display, and a network interface78 coupling the control tower 70 to both the interface device 50 and thesurgical robot 80. The control tower 70 may also house third-partydevices, such as an advanced light engine 72, an electrosurgicalgenerator unit (ESU) 74, and insufflator and CO2 tanks 75. The controltower 70 may offer additional features for user convenience, such as thenurse display touchscreen, soft power and E-hold buttons, user-facingUSB for video and still images, and electronic caster control interface.The auxiliary computer may also run a real-time Linux, providinglogging/monitoring and interacting with cloud-based web services.

The surgical robot 80 comprises an articulated operating table 84 with aplurality of integrated arms 82 that may be positioned over the targetpatient anatomy. A suite of compatible tools 83 may be attached to ordetached from the distal ends of the arms 82, enabling the surgeon toperform various surgical procedures. The surgical robot 80 may alsocomprise control interface 85 for manual control of the arms 82,operating table 84, and tools 83. The control interface 85 may includeitems such as, but not limited to, remote controls, buttons, panels, andtouchscreens. Other accessories such as trocars (sleeves, sealcartridge, and obturators) and drapes may also be manipulated to performprocedures with the system. In one embodiment, the plurality of the arms82 may include four arms mounted on both sides of the operating table84, with two arms on each side. For certain surgical procedures, an armmounted on one side of the operating table 84 may be positioned on theother side of the operating table 84 by stretching out and crossing overunder the operating table 84 and arms mounted on the other side,resulting in a total of three arms positioned on the same side of theoperating table 84. The surgical tool may also comprise table computers81 and a network interface 88, which may place the surgical robot 80 incommunication with the control tower 70.

FIG. 6 is a flow chart illustrating a method 90 of controlling asurgical robotic system using a mobile device, in accordance withaspects of the subject technology. The mobile device may be theinterface device of FIG. 2A, FIG. 2B, or FIG. 4.

In block 91, the mobile device may capture a live image of a portion ofthe surgical robotic system. The mobile device may use a camera tocapture a planar image or video of components of the surgical roboticsystem to display on the screen.

In block 93, the mobile device or a user may identify a target componentof the surgical robotic system from the captured live image. Forexample, a user may select a target component of the surgical roboticsystem to control by pointing the mobile device at the target componentso that the target component appears near the center of the displayscreen. An image processing algorithm running on the mobile device or onthe control tower may process the captured live image to identify thetarget component.

In block 95, the mobile device may display the captured live image, thetarget component, and possible target poses of the target component onthe screen. For example, the mobile device may highlight a robotic armas the target component on the screen by displaying a visual indicatorthat outlines the robotic arm or by rendering an image of the roboticarm overlaid with augmented or virtual information. In another aspect,the mobile device may run an image processing algorithm on the capturedlive image to identify one or more objects with which the robotic armmay engage as possible target poses for the robotic arm.

In block 97, the mobile device may receive from the user an input toselect one of the displayed target poses for the target component. Forexample, the user may indicate on the touchscreen a pre-dockingdestination position for the robotic arm. In other aspects, the user mayuse the touchscreen to select an option for moving or changing theposition, orientation, or function of the robotic arm.

In block 98, the mobile device may generate an input command to drivethe target component to the selected target pose. For example, themobile device may transmit an activation signal to the control tower forthe control tower to generate the control signals to activate theactuator to drive the gears, linkages, or joints of the robotic armthrough a calculated trajectory to the selected destination position. Inone aspect, the mobile device or the control tower may calculate thetrajectory for moving the robotic arm from an initial pose to thedestination pose. The trajectory may be calculated so the robotic armavoids colliding with or interfering with the operations of otherrobotic arms.

The foregoing description, for purposes of explanation, used specificnomenclature to provide a thorough understanding of the invention.However, it will be apparent to one skilled in the art that specificdetails are not required in order to practice the invention. Thus, theforegoing descriptions of specific embodiments of the invention arepresented for purposes of illustration and description. They are notintended to be exhaustive or to limit the invention to the precise formsdisclosed; obviously, many modifications and variations are possible inview of the above teachings. The embodiments were chosen and describedin order to best explain the principles of the invention and itspractical applications. They thereby enable others skilled in the art tobest utilize the invention and various embodiments with variousmodifications as are suited to the particular use contemplated. It isintended that the following claims and their equivalents define thescope of the invention.

The methods, devices, processing, and logic described above may beimplemented in many different ways and in many different combinations ofhardware and software. The controllers and estimators may compriseelectronic circuitry. For example, all or parts of the implementationsmay be circuitry that includes an instruction processor, such as aCentral Processing Unit (CPU), microcontroller, or a microprocessor; anApplication Specific Integrated Circuit (ASIC), Programmable LogicDevice (PLD), or Field Programmable Gate Array (FPGA); or circuitry thatincludes discrete logic or other circuit components, including analogcircuit components, digital circuit components or both; or anycombination thereof. The circuitry may include discrete interconnectedhardware components and/or may be combined on a single integratedcircuit die, distributed among multiple integrated circuit dies, orimplemented in a Multiple Chip Module (MCM) of multiple integratedcircuit dies in a common package, as examples.

The circuitry may further include or access instructions for executionby the circuitry. The instructions may be stored in a tangible storagemedium that is other than a transitory signal, such as a flash memory, aRandom Access Memory (RAM), a Read Only Memory (ROM), an ErasableProgrammable Read Only Memory (EPROM); or on a magnetic or optical disc,such as a Compact Disc Read Only Memory (CDROM), Hard Disk Drive (HDD),or other magnetic or optical disk; or in or on another machine-readablemedium. A product, such as a computer program product, may include astorage medium and instructions stored in or on the medium, and theinstructions when executed by the circuitry in a device may cause thedevice to implement any of the processing described above or illustratedin the drawings.

The implementations may be distributed as circuitry among multiplesystem components, such as among multiple processors and memories,optionally including multiple distributed processing systems.Parameters, databases, and other data structures may be separatelystored and managed, may be incorporated into a single memory ordatabase, may be logically and physically organized in many differentways, and may be implemented in many different ways, including as datastructures such as linked lists, hash tables, arrays, records, objects,or implicit storage mechanisms. Programs may be parts (e.g.,subroutines) of a single program, separate programs, distributed acrossseveral memories and processors, or implemented in many different ways,such as in a library, such as a shared library (e.g., a Dynamic LinkLibrary (DLL)). The DLL, for example, may store instructions thatperform any of the processing described above or illustrated in thedrawings, when executed by the circuitry.

Also, the various controllers discussed herein can take the form ofprocessing circuitry, a microprocessor or processor, and acomputer-readable medium that stores computer-readable program code(e.g., firmware) executable by the (micro)processor, logic gates,switches, an application specific integrated circuit (ASIC), aprogrammable logic controller, and an embedded microcontroller, forexample. The controller can be configured with hardware and/or firmwareto perform the various functions described below and shown in the flowdiagrams. Also, some of the components shown as being internal to thecontroller can also be stored external to the controller, and othercomponents can be used.

1. A mobile interface device for a surgical robotic system, comprising:a camera configured to capture a live image of a portion of the surgicalrobotic system; a processor configured to: process the captured liveimage to identify a target component of the surgical robotic system tobe controlled using the mobile interface device; and determine a currentpose of the target component; a display configured to: display thecaptured live image; and display one or more target poses of the targetcomponent; and one or more control interfaces configured to: allow auser to select one of the target poses; and generate an input command todrive the target component from the current pose to the selected targetpose.
 2. The mobile interface of claim 1, wherein the display is furtherconfigured to present information to visually indicate the one or moretarget poses of the target component to the user.
 3. The mobileinterface device of claim 1, wherein the processor is further configuredto determine a plurality of command options for controlling the targetcomponent and the display is further configured to display the pluralityof command options for the user to control the target component.
 4. Themobile interface device of claim 1, wherein the processor is furtherconfigured to process the captured live image to identify a secondcomponent of the surgical robotic system, and the display is furtherconfigured to display information to indicate a current pose of thesecond component as one of the target poses of the target component. 5.The mobile interface device of claim 1, wherein the processor is furtherconfigured to determine a trajectory to drive the target component fromthe current pose to the selected target pose.
 6. The mobile interfacedevice of claim 1, further comprising one or more sensors configured tomeasure a three-dimensional position relative to the interface device ofa plurality of surface points of the surgical robotic system captured inthe live image, and wherein the processor is further configured toprocess the plurality of measured three-dimensional positions of thesurface points of the surgical robotic system captured in the live imageto identify the target component.
 7. The mobile interface device ofclaim 1, wherein the camera comprises a 3-dimensional camera configuredto scan a patient on an operating table of the surgical robotic systemduring a pre-operative setup, wherein the processor is furtherconfigured to process scanned information of the patient to determine apatient-specific movement of the target component.
 8. The mobileinterface device of claim 1, wherein the one or more control interfacesis further configured to generate a second input command to freeze amovement of the target component when the target component moves off thecaptured live image.
 9. The mobile interface device of claim 1, whereinthe display is further configured to display a visual indication of thetarget component to allow the user to confirm the target component. 10.The mobile interface device of claim 1, wherein the display is atouch-screen display and wherein the touch-screen display is configuredto allow the user to select a current pose of a second component of thesurgical robotic system in the captured live image as a desired targetpose of the target component.
 11. A method for controlling a surgicalrobotic system, comprising: capturing, using a mobile device, a liveimage of a portion of the surgical robotic system; identifying, by themobile device or by a user, a target component of the surgical roboticsystem from the captured live image; displaying, by the mobile device,the captured live image and one or more target poses of the targetcomponent; receiving, by the mobile device from the user, a selectedtarget pose from the one or more target poses displayed; and generating,by the mobile device, an input command to drive the target componentfrom a current pose to the selected target pose.
 12. The method of claim11, wherein the displaying, by the mobile device, the one or more targetposes of the target component comprises presenting information about theone or more target poses.
 13. The method of claim 11, furthercomprising: generating, by the mobile device, a plurality of commandoptions for controlling the target component; and displaying, by themobile device, the plurality of command options for the user to controlthe target component.
 14. The method of claim 11, further comprising:identifying, by the mobile device, a second component of the surgicalrobotic system from the captured live image; and displaying, by themobile device, information to indicate a current pose of the secondcomponent as one of the target poses of the target component.
 15. Themethod of claim 11, further comprising: determining, by the mobiledevice, a trajectory to drive the target component from the current poseto the selected target pose.
 16. The method of claim 11, furthercomprising: scanning a patient on an operating table of the surgicalrobotic system during a pre-operative setup to obtain three-dimensionalinformation of the patient; and processing the three-dimensionalinformation of the patient to determine a patient-specific movement ofthe target component.
 17. The method of claim 11, further comprising:generating, by the mobile device, a second input command to freeze amovement of the target component when the target component moves off thecaptured live image.
 18. The method of claim 11, further comprising:displaying, by the mobile device, a visual indication of the targetcomponent to allow the user to confirm the target component.
 19. Asurgical robotic system, comprising: an operating table; a plurality ofrobotic arms coupled to the operating table; a mobile interface deviceconfigured to: capture a live image of the operating table or theplurality of robotic arms; display a rendered image of the operatingtable or the plurality of robotic arms from the live image; receive userinput to control the operating table or one of the robotic arms; andgenerate an input command to control the operating table or one of therobotic arms in response to the user input; and a control towercommunicatively coupled to the mobile interface device, the operatingtable and the plurality of robotic arms, wherein the control tower isconfigured to: receive the input command from the mobile interfacedevice; and generate a control command to manipulate the operating tableor one of the robotic arms in response to the input command.
 20. Thesurgical robotic system of claim 19, wherein the mobile interface deviceis further configured to present a plurality of input command options tocontrol the operating table or one of the robotic arms.